Period
to 25 February 2018

The following table provides summary statistics for contract job vacancies advertised in the North West with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 25 February 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
England > North West
6 months to
25 Feb 2018
Same period 2017 Same period 2016
Rank 28 24 31
Rank change year-on-year -4 +7 +7
Contract jobs citing TDD 324 375 423
As % of all contract IT jobs advertised in the North West 6.12% 6.39% 5.15%
As % of the Processes & Methodologies category 7.32% 7.58% 6.30%
Number of daily rates quoted 260 297 314
North West median daily rate £394 £420 £375
Median daily rate % change year-on-year -6.25% +12.00% +7.14%
10th Percentile £310 £313 £293
90th Percentile £550 £538 £500
England median daily rate £500 £463 £450
% change year-on-year +8.11% +2.78% +5.88%
Number of hourly rates quoted 2 4 5
North West median hourly rate £43.00 £42.50 £37.50
Median hourly rate % change year-on-year +1.18% +13.33% +11.11%
England median hourly rate £45.00 £42.50 £40.00
% change year-on-year +5.88% +6.25% +8.84%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the North West with a requirement for process or methodology skills.

All Process and Methodology Skills
North West
Contract vacancies with a requirement for process or methodology skills 4,427 4,949 6,714
As % of all contract IT jobs advertised in the North West 83.64% 84.32% 81.70%
Number of daily rates quoted 2,850 3,223 4,084
North West median daily rate £410 £400 £400
Median daily rate % change year-on-year +2.50% - +6.67%
10th Percentile £256 £263 £250
90th Percentile £600 £575 £560
England median daily rate £455 £438 £425
% change year-on-year +4.00% +2.94% +4.94%
Number of hourly rates quoted 223 167 285
North West median hourly rate £24.56 £27.50 £32.50
Median hourly rate % change year-on-year -10.69% -15.38% +59.74%
10th Percentile £12.05 £12.90 £13.00
90th Percentile £57.00 £51.50 £50.48
England median hourly rate £24.56 £25.00 £23.42
% change year-on-year -1.76% +6.75% +14.24%

TDD
Job Vacancy Trend in the North West

Job postings citing TDD as a percentage of all IT jobs advertised in the North West.

Job vacancy trend for TDD in the North West

TDD
Contractor Daily Rate Trend in the North West

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in the North West.

Contractor daily rate trend for TDD in the North West

TDD
Contractor Daily Rate Histogram in the North West

The daily rate distribution of IT jobs citing TDD in the North West over the 6 months to 25 February 2018.

Contractor daily rate histogram for TDD in the North West

TDD
Contractor Hourly Rate Trend in the North West

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in the North West.

Contractor hourly rate trend for TDD in the North West

TDD
Contract Job Locations in the North West

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the North West region over the 6 months to 25 February 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Manchester +1 210 £400 -1.54% 154
Cheshire -17 45 £363 -11.85% 37
Lancashire -3 36 £375 -16.67% 8
Merseyside +3 26 £400 -20.00% 9
TDD
England

For the 6 months to 25 February 2018, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the North West region with a requirement for TDD.

1 230 (70.99%) Agile Software Development
2 158 (48.77%) BDD
3 148 (45.68%) JavaScript
4 140 (43.21%) Java
5 132 (40.74%) Scrum
6 103 (31.79%) Test Automation
7 95 (29.32%) CSS
7 95 (29.32%) Git (software)
8 93 (28.70%) HTML
9 89 (27.47%) SQL
10 88 (27.16%) Kanban
11 83 (25.62%) AngularJS
12 82 (25.31%) Node.js
13 75 (23.15%) C#
14 68 (20.99%) .NET
15 66 (20.37%) MVC
16 64 (19.75%) Jenkins
17 62 (19.14%) React
18 61 (18.83%) REST
19 60 (18.52%) Software Engineering
20 59 (18.21%) Continuous Integration
21 57 (17.59%) SQL Server
22 56 (17.28%) JIRA
23 52 (16.05%) Spring
24 51 (15.74%) Linux
25 50 (15.43%) Microservices
26 49 (15.12%) DevOps
27 48 (14.81%) Mentoring
27 48 (14.81%) Web Services
28 47 (14.51%) MySQL

TDD
Co-occurring IT Skills in the North West by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 33 (10.19%) Confluence
2 16 (4.94%) Tomcat
3 10 (3.09%) Apache Spark
4 9 (2.78%) Apache
4 9 (2.78%) Elasticsearch
4 9 (2.78%) WebSphere
5 6 (1.85%) CMS
6 4 (1.23%) Amazon Alexa
6 4 (1.23%) Commerce Server
6 4 (1.23%) JBoss
7 3 (0.93%) Apache Solr
7 3 (0.93%) nginx
8 2 (0.62%) NServiceBus
9 1 (0.31%) Adobe Experience Manager
9 1 (0.31%) Drupal
9 1 (0.31%) EPiServer
9 1 (0.31%) Oracle SOA Suite
9 1 (0.31%) SharePoint
9 1 (0.31%) Sitefinity
Applications
1 5 (1.54%) Microsoft Excel
2 3 (0.93%) MS Visio
3 2 (0.62%) Photoshop
Business Applications
1 2 (0.62%) Dynamics CRM
1 2 (0.62%) Magento
2 1 (0.31%) Oracle SCM
Cloud Services
1 37 (11.42%) Amazon AWS
2 21 (6.48%) Slack
3 16 (4.94%) Microsoft Azure
4 15 (4.63%) npm
5 13 (4.01%) GitHub
6 10 (3.09%) AWS Lambda
6 10 (3.09%) Serverless
7 9 (2.78%) Amazon EC2
8 5 (1.54%) Google Cloud Platform
9 4 (1.23%) Amazon S3
10 3 (0.93%) SaaS
11 2 (0.62%) Amazon CloudWatch
12 1 (0.31%) BrowserStack
12 1 (0.31%) Cloud Computing
12 1 (0.31%) Dynamics 365
Communications & Networking
1 12 (3.70%) HTTP
2 10 (3.09%) SMS
3 7 (2.16%) SSL
4 4 (1.23%) TCP/IP
5 3 (0.93%) DNS
Database & Business Intelligence
1 57 (17.59%) SQL Server
2 47 (14.51%) MySQL
3 46 (14.20%) MongoDB
4 42 (12.96%) NoSQL
5 30 (9.26%) Relational Database
6 25 (7.72%) PostgreSQL
7 17 (5.25%) RDBMS
8 12 (3.70%) Hadoop
9 11 (3.40%) Apache Cassandra
10 10 (3.09%) Big Data
10 10 (3.09%) CouchDB
11 6 (1.85%) SQL Server 2014
12 5 (1.54%) Couchbase
13 4 (1.23%) Redis
13 4 (1.23%) SQL Server Integration Services
14 3 (0.93%) DB2
14 3 (0.93%) Oracle Database
15 2 (0.62%) Amazon DynamoDB
15 2 (0.62%) Apache Hive
15 2 (0.62%) Neo4j
Development Applications
1 95 (29.32%) Git (software)
2 64 (19.75%) Jenkins
3 56 (17.28%) JIRA
4 35 (10.80%) Cucumber
4 35 (10.80%) JUnit
5 23 (7.10%) Selenium
6 20 (6.17%) Jasmine
7 14 (4.32%) Maven
8 13 (4.01%) Gradle
8 13 (4.01%) gulp
8 13 (4.01%) SonarQube
9 11 (3.40%) Grunt
9 11 (3.40%) JProfiler
10 9 (2.78%) SpecFlow
11 8 (2.47%) Team Foundation Server
11 8 (2.47%) TeamCity
12 6 (1.85%) Subversion
13 5 (1.54%) Eclipse
13 5 (1.54%) JMeter
14 4 (1.23%) IntelliJ
General
1 32 (9.88%) Finance
2 21 (6.48%) Banking
3 17 (5.25%) Games
4 13 (4.01%) Marketing
5 11 (3.40%) Retail
6 8 (2.47%) Manufacturing
7 7 (2.16%) Telecoms
8 6 (1.85%) Electronics
9 3 (0.93%) Pharmaceutical
10 2 (0.62%) Retail Banking
11 1 (0.31%) Advertising
11 1 (0.31%) Back Office
11 1 (0.31%) Front Office
11 1 (0.31%) Law
11 1 (0.31%) Legal
Job Titles
1 225 (69.44%) Developer
2 81 (25.00%) Java Developer
3 43 (13.27%) .NET Developer
4 30 (9.26%) C# Developer
5 28 (8.64%) Software Engineer
6 27 (8.33%) Full Stack Developer
7 26 (8.02%) Scrum Master
8 23 (7.10%) C# .NET Developer
9 22 (6.79%) Java Engineer
9 22 (6.79%) JavaScript Developer
10 18 (5.56%) Java Software Engineer
11 16 (4.94%) React Developer
12 15 (4.63%) Senior Developer
13 14 (4.32%) Agile Developer
13 14 (4.32%) Software Developer
14 13 (4.01%) SQL Developer
14 13 (4.01%) UI Developer
15 12 (3.70%) Agile Scrum Master
16 11 (3.40%) Java Software Developer
16 11 (3.40%) Node.js Developer
Libraries, Frameworks & Software Standards
1 95 (29.32%) CSS
2 93 (28.70%) HTML
3 83 (25.62%) AngularJS
4 82 (25.31%) Node.js
5 68 (20.99%) .NET
6 62 (19.14%) React
7 61 (18.83%) REST
8 52 (16.05%) Spring
9 48 (14.81%) Web Services
10 35 (10.80%) ASP.NET
10 35 (10.80%) RESTful
11 31 (9.57%) HTML5
12 30 (9.26%) ASP.NET MVC
13 29 (8.95%) Ajax
13 29 (8.95%) ASP.NET Web API
13 29 (8.95%) J2EE
14 28 (8.64%) CSS3
15 27 (8.33%) SOAP
16 25 (7.72%) jQuery
17 23 (7.10%) .NET Framework
Miscellaneous
1 27 (8.33%) Greenfield Project
2 18 (5.56%) User Experience
3 10 (3.09%) Enterprise Software
3 10 (3.09%) Virtual Team
4 8 (2.47%) Algorithms
5 7 (2.16%) Mobile App
6 5 (1.54%) Hybrid Cloud
7 4 (1.23%) Analytical Skills
8 3 (0.93%) Online Banking
8 3 (0.93%) Wiki
9 2 (0.62%) Data Structures
9 2 (0.62%) Digital Media
9 2 (0.62%) Management Information System
9 2 (0.62%) N-Tier
10 1 (0.31%) BBC
10 1 (0.31%) Fintech
10 1 (0.31%) iPad
10 1 (0.31%) iPhone
10 1 (0.31%) Public Cloud
Operating Systems
1 51 (15.74%) Linux
2 22 (6.79%) Red Hat Enterprise Linux
3 7 (2.16%) Apple iOS
3 7 (2.16%) Oracle Linux
4 6 (1.85%) Windows
5 4 (1.23%) Android
6 2 (0.62%) Unix
Processes & Methodologies
1 230 (70.99%) Agile Software Development
2 158 (48.77%) BDD
3 132 (40.74%) Scrum
4 103 (31.79%) Test Automation
5 88 (27.16%) Kanban
6 66 (20.37%) MVC
7 60 (18.52%) Software Engineering
8 59 (18.21%) Continuous Integration
9 50 (15.43%) Microservices
10 49 (15.12%) DevOps
11 48 (14.81%) Mentoring
12 38 (11.73%) Unit Testing
13 37 (11.42%) User Stories
14 36 (11.11%) Pair Programming
15 35 (10.80%) Open Source
16 31 (9.57%) SDLC
17 28 (8.64%) Coaching
18 26 (8.02%) OO
19 23 (7.10%) Continuous Delivery
19 23 (7.10%) E-Commerce
Programming Languages
1 148 (45.68%) JavaScript
2 140 (43.21%) Java
3 89 (27.47%) SQL
4 75 (23.15%) C#
5 24 (7.41%) Python
6 16 (4.94%) Ruby
6 16 (4.94%) Scala
7 15 (4.63%) PHP
8 9 (2.78%) ES6
9 7 (2.16%) Go
10 6 (1.85%) Groovy
11 5 (1.54%) Apple Swift
11 5 (1.54%) VB
12 4 (1.23%) C
12 4 (1.23%) Objective-C
12 4 (1.23%) VBA
13 3 (0.93%) C++
13 3 (0.93%) GraphQL
13 3 (0.93%) PowerShell
13 3 (0.93%) TypeScript
Qualifications
1 15 (4.63%) PMI Certification
1 15 (4.63%) PMP
2 7 (2.16%) Security Cleared
3 2 (0.62%) SC Cleared
4 1 (0.31%) DV Cleared
Quality Assurance & Compliance
1 7 (2.16%) QA
2 2 (0.62%) Disclosure Scotland
System Software
1 10 (3.09%) Docker
2 1 (0.31%) HDFS
2 1 (0.31%) Varnish
2 1 (0.31%) Virtual Machines
Systems Management
1 17 (5.25%) Opscode Chef
2 15 (4.63%) Puppet
3 12 (3.70%) Ansible
4 6 (1.85%) Business Desktop Deployment
5 3 (0.93%) logstash
6 1 (0.31%) Hadoop YARN
6 1 (0.31%) Kubernetes
6 1 (0.31%) Mesos
6 1 (0.31%) Systems Management Server (SMS)
Vendors
1 33 (10.19%) Oracle
2 19 (5.86%) Microsoft
3 14 (4.32%) Perforce
4 12 (3.70%) Google
5 11 (3.40%) Red Hat
6 7 (2.16%) SAP
7 4 (1.23%) Xamarin
8 3 (0.93%) Ab Initio
8 3 (0.93%) Atlassian
8 3 (0.93%) Sitecore
9 2 (0.62%) Splunk
9 2 (0.62%) Zend
10 1 (0.31%) Adobe
10 1 (0.31%) Capita
10 1 (0.31%) HP
10 1 (0.31%) hybris
10 1 (0.31%) WSO2